A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5960-01-439-3731
NSN 4140-01-364-9797
NSN 6610-01-278-9387
NSN 7035-00-275-5604
NSN 5996-01-400-3558
NSN 5935-01-539-1971
NSN 6240-01-606-6470
NSN 5990-01-499-6930
NSN 7035-00-337-8745
NSN 6220-01-332-4698
NSN 5920-01-105-4506
NSN 5910-00-821-2079